The second stage of laborina primiparawithout epidural anesthesia should last nomore than
A: 1 hour
B: 2 hours
C: 3 hours
D: 1.5 hours
A: 1 hour
B: 2 hours
C: 3 hours
D: 1.5 hours
举一反三
- how long will they stay in the museum of Terracotta Army? A: 1 hour B: 2 hours C: 3 hours D: 2.5 hours
- Labor is a termed as precipitate if it occurs under: () A: 1 hour B: 3 hours C: ½ hour D: 4 hours E: 2hours
- I went into the living room where we talked for . A: round the clock B: two hours or so C: a second hour D: some hours
- SMPTE时间码广泛应用在目前的影音工业中，主要参数格式是： A: Frames：Second：Minutes：Hours B: Hours：Frames：Minutes：Second C: Hours：Minutes：Frames：Second D: Hours：Minutes：Second ： Frames
- Two groups of people are compared in the third study. They are people______. A: with less than5 hours of sleep a night and with 7 to 9 hours of sleep B: who slept 4 hours a night and who slept 4 hours for 2 nights C: with less than 4 hours of sleep a night and with 7 to 9 hours of sleep D: with less than 5 hours of sleep a night and with 8 hours of sleep